In my opinion, the 5m cable is not an original Eco Flow cable - at least not one with the 3-pin plug XT60i. Connector XT60i - This is required for the Delta to distinguish between car / solar. The third pin is used for identification. If it is connected to the pos. conductor it is a car charging cable, if it is connected to the neg. pole it is a solar charging cable. This cable is missing the 3rd pin (on the side). The Delta could limit the device input to max. 8 A (however, 15 A is possible with the Pro).